Earnings Per Share - Schedule of Computation (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Antidilutive Securities Excluded from Computation of Earnings Per Share
Net income	$ 1,035.3	$ 930.5	$ 2,650.8	$ 2,503.1
Basic weighted-average common shares outstanding (in shares)	258.0	256.5	257.7	255.8
Effect of potentially dilutive securities:
Employee stock purchase program (in shares)	0.0	0.0	0.0	0.1
Diluted weighted-average common shares outstanding (in shares)	260.6	259.5	260.4	258.7
Basic net income per common share (in dollars per share)	$ 4.01	$ 3.63	$ 10.29	$ 9.78
Diluted net income per common share (in dollars per share)	$ 3.97	$ 3.59	$ 10.18	$ 9.68
Stock options
Effect of potentially dilutive securities:
Share-based payment arrangements (in shares)	1.2	1.4	1.2	1.4
Restricted stock units (including PSUs)
Effect of potentially dilutive securities:
Share-based payment arrangements (in shares)	1.4	1.6	1.5	1.4